Doc is first:Originally Posted by Jon
He needs to be selected AND he would be the first. The probability that he is selected is
The probability that he is first is thus, the answer is
Same thing as in the first problem, same answer.
Bashful is first, Happy is last:First they need to be selected out of 6 people which is
Now bashful is first which is and hapy is last which is because only 3 poeple remain after bashful. Thus,
For the next problem, you need to select all 4 which is , Now you need them is proper order which is for the first one for the second for the third and for the last Thus,
Sleepy Not last: Add that he is first or second or third. Which is as in the first problem. Thus,
Wishbone not selected: If the probability of selecting him is then the probability of not selecting him is
Hope this helps, and also that I did not erred.